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SW-TM4C: How to fix 'Unknown USB Device'

Hiroyuki Kanematu
Expert 2975 points
Part Number: SW-TM4C
Other Parts Discussed in Thread: TM4C129ENCZAD, EK-TM4C1294XL

I loaded the USB_dev_bulk folder in SW-TM4C into TM4C129ENCZAD.
(Created a project in CCS and through the XDS110 Debugger.)

The USB device was recognized as unknown after loading.
How would you like to handle this?

I am currently running Windows 10.

I would like to install a driver compatible with Win10.

  • 0
    TI__Guru*** 129610 points

    Hello Kanematu-san,

    The drivers for TivaWare-based USB projects are located at C:\ti\TivaWare_C_Series-2.2.0.295\windows_drivers

    You can manually install a driver for that device by right clicking it and selecting Update Driver (at least in English) and browse your computer for local drivers. Then point to the above folder so it can install the TivaWare-specific USB driver for the USB Bulk example.

    Best Regards,

    Ralph Jacobi

  • 0 in reply to Ralph Jacobi
    Expert 2975 points

    Hello, I tried to put each of the 'AMD64', 'i386', 'Win2k' in the hierarchy you taught, but there was a reply that the optimal driver was already installed.

    What should I do in this case?
    Should I do the procedure according to the signing.txt procedure?

  • 0 in reply to Hiroyuki Kanematu
    TI__Guru*** 129610 points

    Hello Kanematu-san,

    You don't need to select the sub-folders, just select the main folder. The subfolders are for legacy drivers/CPUs - the latest Windows is under the main windows_drivers folder.

    Best Regards,

    Ralph Jacobi

  • 0 in reply to Ralph Jacobi
    Expert 2975 points

    I tried as you suggested, but it said that the best drivers were already installed.

    What should I do in this case?

  • 0 in reply to Hiroyuki Kanematu
    TI__Guru*** 129610 points

    Hello Kanematu-san,

    I have limited suggestions to offer at this point as these drivers are very stable.

    First, while Windows isn't fully recognizing the device, you could try and see if the USB bulk example works as its supposed to and is able to transfer the data.

    The next possibility could be to try with a TM4C EVM like EK-TM4C1294XL and see if the drivers are recognized then - if so, it could indicate some system level issue with your custom board. I wouldn't expect this to actually be the case, but it is one possible crosscheck to perform.

    Lastly, it could be that it is a Windows specific issue where Windows is not properly installing the drivers. I wouldn't know how to recover from that situation however.

    Best Regards,

    Ralph Jacobi

  • 0 in reply to Ralph Jacobi
    Expert 2975 points

    Hi, thanks for your reply.

    I think that there is also a problem with the OS at this stage.
    What are your thoughts on that?

  • 0 in reply to Hiroyuki Kanematu
    TI__Guru*** 129610 points

    Hi Kanematu-san,

    I have no Windows development experience so I can't speak to any OS issues.

    Best Regards,

    Ralph Jacobi